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Note 1 - Basis of Presentation (Tables)
6 Months Ended
Jun. 30, 2019
Notes Tables  
Schedule of Cash and Cash Equivalents [Table Text Block]
Cash, Cash Equivalents and Restricted Cash
 
June 30
, 201
9
   
December 31, 201
8
   
June 30
, 201
8
 
(in thousands)
 
 
 
 
 
 
 
 
 
 
 
 
                         
Cash and Cash Equivalents
  $
19,481
    $
12,558
    $
20,237
 
Restricted Cash included in Other Assets
   
133
     
133
     
133
 
Cash, Cash Equivalents and Restricted Cash in the Consolidated Statement of Cash Flows
  $
19,614
    $
12,691
    $
20,370